Per b-1 engineering
A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes bearing, plain, rod end and bearing, plain, spherical.
Classification: Spherical roller bearings, single row
NSN 6685-00-900-0579
NSN 6145-01-395-1057
NSN 5985-00-467-1838
NSN 6650-01-555-8049
NSN 7035-01-281-3642
NSN 4140-01-344-5368
NSN 5960-00-837-2411
NSN 6610-01-420-0904
NSN 2925-01-004-5627
NSN 6105-01-537-9207
NSN 5905-01-432-1730
NSN 5835-01-495-0595